Dissertation > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices

The Research and Design of Digital Signature Scheme Based on Biometrics

Author ZhaoXueFeng
Tutor XinXiaoLong
School Northwestern University
Course Computational Mathematics
Keywords Biometric Fuzzy extractor Multiple biometric Identity - based signature
CLC TP391.4
Type Master's thesis
Year 2009
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Biometric its unique advantages to become the focus of concern in the field of information security . The research and design of biometric identity - based digital signature scheme . This article first briefly introduces several common biometric identification technology , compare the pros and cons of each authentication typical use of biometric authentication systems may be subject to attack , and then discusses a biometric - based key generation technology - fuzzy extractor can change biometric stable extracted distribution consistent with a strong key , and provides a new way for us to take advantage of biometric authentication . The author through the the fuzzy extractor extracted from the biometric the biological key cryptography significance , and applied to subsequent digital signature scheme . The fuzzy extractor was originally designed under the conditions of the local authentication , with the extensive application of the network , real-time requirements of the certification system is getting higher and higher , it shows some limitations , will lead to some security issues . Made a detailed introduction of the first fuzzy extraction techniques , and then raised in a non- secure channel the remote certification under the conditions of its improvements , then the improved fuzzy extractor extracts used in identity-based digital signature key programs. Showing their limitations in the practical application in view of a single biometric , can not meet the actual requirements , and therefore create a digital signature system based on multiple biometrics is necessary to design a digital signature scheme based on multiple biometric .

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